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ChemistryElectrochemistryMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

The temperature coefficient of the emf i.e., dE dt =–0.00065  VK –1   for the cellCd|CdCl21M||AgCls|Agat 25 o C . Calculate the entropy changes ΔS 298 K for the cell reaction Cd+2 AgCl→ Cd 2+ +2  Cl – +2 Ag .

Options:

Answer:
D
Solution:

ΔS=+nFdEdt
=2×96500×–0.00065
=–125.5  JK –1

Stream:NTA_ABHYASSubject:ChemistryTopic:ElectrochemistrySubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: PYQ_2020

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